Collection

A collection of all 100 mental models.
Below are all 100 mental models (work-in-progress) from several disciplines to help you think deeper and better. Each model contains an in-depth description to give you an edge in becoming a better thinker. Use the dropdown below to browse through all mental models.

Critical Mass

Physics

The amount of reactant necessary for something to happen and to keep happening.

Competitive Advantage

Economics

Circumstances wherein one party has significantly more experience, knowledge, or resources than a competitor.

Mr. Market

Finance

Mr. Market is a metaphor that represents moody behavior of stock market fluctuation.

Economic Moat

Business

A competitive advantage over a competition to protect market share and long-term profitability.

Circle of Competency

Business

Describes a person’s competency in an area that matches their skills and abilities.

Regression to the Mean

Statistics

What goes up must come down and what goes down must come up.

Correlation and Causation

Statistics

Two things happening at the same time is correlation while one causing the other to change is causation.

Reason Respecting Tendency

Psychology

Asking questions can help us reason more and gain better understanding of things around us.

Trade-off

Economics

A giving up of one thing in return for another to find the most desirable outcome.

Leverage

Physics

By using a lever, you can amplify the input force. Think of a see-saw.

Tragedy of the Commons

Economics

When a set of individuals act in their own self-interest by depleting common resources.

Prisoner's Dilemma

Economics

Prisoner's dilemma helps us understand how people behave when it comes to cooperation or self-interests.

Power Laws

Mathematics

Power law is one form of Pareto's principle where the proportion of 80/20 shifts to 99/1.

Margin of Safety

Engineering

Describes the capacity of a system to carry load beyond its actual capability.

Feedback Loop

Engineering

A feedback loop occurs when the output of a system feeds back into itself as an input, thereby further affecting the output.

Compound Interest

Mathematics

Compound interest is the interest you earn on the sum of your initial amount and the interest.

Pareto Principle

Economics

80% of the outcomes come from 20% of the action.

Inversion

Mathematics

The thinking in which you want opposite — both forward and backward.